A measuring device for residential building construction

Abstract

The invention relates to a measuring device for residential building construction applied in the field of building construction technology, comprising a connecting rod, a debris clearing mechanism and an intelligent measuring device; a main shaft is installed at the bottom of the connecting rod, a measuring roller is rotatably connected to the main shaft, and a counter is installed on the main shaft; the debris clearing mechanism comprises a mounting seat installed with the connecting rod, a sliding block vertically slidably connected to the mounting seat, a magnet block fixed on the top of the sliding block, a detection roller rotatably connected to the sliding block through a rotating shaft, and a cleaning component located on the top of the measuring roller; a measuring module, a card checking module, a power storage driving module and a display module are arranged on the intelligent measuring device, and by adopting the above structure, whether the measuring roller is stuck with impurities can be automatically determined by the intelligent measuring device, and when cleaning is required, the detection roller is controlled to accumulate driving force, and the impurities on the surface of the measuring roller are released in time to clean, thereby reducing the impact on the measuring roller during the measuring process and reducing the physical burden of the operator.

Description

Technical Field

[0001] The invention relates to a measuring device, in particular to a measuring device for residential building construction applied in the technical field of building construction. Background Art

[0002] There are many types of hand-pushed roller distance meters, which are used to measure the length of the site and are often used in residential building construction surveying operations and road construction surveying operations.

[0003] The patent with publication number CN218179968U discloses a hand-pushed roller rangefinder, which includes an operating rod, a handle rod is installed at the top of the operating rod, a roller is installed at the bottom of the operating rod, and a control box is movably installed on the handle rod; a connecting tube is provided along one side of the box body of the control box, and the connecting tube is sleeved on the lower half of the handle rod and can be rotated and adjusted; during measurement, the control box can be turned to the outside of the handle rod, and holding the handle rod can drive the roller to roll forward, a magnetic induction counting switch is installed at the bottom of the operating rod, and a magnet block is installed on the inside of the roller. When the roller rolls, the magnetic induction counting switch will sense the magnet block and feed back information to the circuit control board in the control box to complete the counting, and the obtained value multiplied by the circumference of the roller can obtain the measurement value.

[0004] In the above scheme, when the measuring roller rolls along the construction site for measurement, the length of the measuring site is calculated by the circumference of the roller and the rolling speed of the roller. Due to the complex ground conditions of the construction site, there will be a lot of dust and sand and gravel particles on the unfinished construction site. In the process of pushing the measuring roller to roll, sand and gravel particles may be stuck on the surface of the measuring roller, changing the length traveled by the measuring roller when it rolls one circle, thereby affecting the measurement result of the site length. Summary of the invention

[0005] In view of the above-mentioned prior art, the technical problem to be solved by the present invention is that due to the complex ground conditions of the construction site, there will be a lot of dust and sand and gravel particles on the unfinished construction site. In the process of pushing the measuring roller to roll, the surface of the measuring roller may be stuck with sand and gravel particles, changing the length traveled by the measuring roller when it rolls one circle, thereby affecting the measurement result of the site length.

[0006] In order to solve the above problems, the present invention provides a measuring device for residential building construction, comprising:

[0007] A connecting rod, a main shaft is installed at the bottom of the connecting rod, a measuring roller is rotatably connected to the main shaft, a counter is installed on the main shaft, and a pressure sensor 1 is embedded in the corresponding position between the main shaft and the measuring roller;

[0008] The cleaning mechanism includes a mounting seat installed with a connecting rod, a sliding block vertically slidably connected with the mounting seat, a magnet block 1 fixed on the top of the sliding block, a detection roller rotatably connected with the sliding block through a rotating shaft, and a cleaning component located on the top of the measuring roller, wherein the detection roller is located above the measuring roller, an electromagnet 1 is installed on the mounting seat located above the magnet block 1, a pressure sensor 2 installed with the sliding block is arranged above the rotating shaft, a linkage wheel is fixed at one end of the rotating shaft away from the detection roller, a synchronous shaft is arranged below the linkage wheel, a volute spring is installed between the outer ring of the synchronous shaft and the mounting seat, and an end of the synchronous shaft is linked to the cleaning component through a chain to drive the cleaning component to clean the measuring roller;

[0009] An intelligent measuring device is installed on a connecting rod. A measuring module, a card checking module, a force storage driving module and a display module are provided on the intelligent measuring device. The measuring module is electrically connected to the display module and the counter respectively. The card checking module is electrically connected to the display module, the force storage driving module, the pressure sensor 1 and the pressure sensor 2 respectively. The force storage driving module is electrically connected to the electromagnet 1. The display module is electrically connected to a display screen.

[0010] In the above-mentioned measuring device for residential building construction, the intelligent measuring device can automatically determine whether the measuring roller is stuck with impurities, and control the detection roller to accumulate driving force when cleaning is required, and release the driving force in time to clean the impurities on the surface of the measuring roller, thereby achieving the purpose of intelligent judgment and automatic cleaning, reducing the impact on the measuring roller during the measurement process, and reducing the physical burden of the operator.

[0011] As a further improvement of the present application, the cleaning component is located on a side of the detection roller close to the travel direction of the measuring roller, and the cleaning component is provided with bristles running along the axial direction of the measuring roller.

[0012] As a further improvement of the present application, a second magnet block is installed on the top of the cleaning component, and a second electromagnet installed on the mounting seat is provided above the second magnet block, and the second electromagnet is electrically connected to the power storage drive module.

[0013] As a further improvement of the present application, the top of the cleaning component is vertically slidably connected to the mounting seat via a guide rod, and a buffer spring is installed between the second magnet block and the cleaning component.

[0014] As another improvement of the present application, the cleaning assembly includes a cleaning frame, a driving shaft linked to a synchronous shaft through a chain, and a cleaning roller brush installed at the bottom of the cleaning frame. The driving shaft drives the cleaning roller brush to rotate through a gear assembly.

[0015] As another improved supplement of the present application, the gear assembly includes a bevel gear ring 1 installed with the driving rod of the cleaning roller brush, a bevel gear ring 2 meshing with the bevel gear ring 1, the driving shaft is rotatably connected with the bevel gear ring 2, a ratchet is fixed on the driving shaft, a pawl corresponding to the ratchet is arranged on the bevel gear ring 2, and a support spring is installed between the end of the pawl away from the ratchet and the bevel gear ring 2.

[0016] As another improvement supplement of the present application, an indicator rod is sleeved on the main shaft, and the end of the indicator rod away from the main shaft is a conical structure. The inner ring of the measuring roller is installed with a bearing corresponding to the main shaft, and the outer ring of the measuring roller is sleeved with a rubber sleeve, and the rubber sleeve is provided with anti-slip grooves.

[0017] As another improvement of the present application, a handle is fixed to the top of the connecting rod, a display screen is installed at the front end of the handle, and an anti-slip cover is covered on the handle.

[0018] In summary, the intelligent measuring device can automatically determine whether the measuring roller is stuck with impurities. When the measuring roller rolls and gets stuck with impurities, the motion state of the measuring roller fluctuates. The card inspection module determines that the outer ring of the measuring roller is stuck with impurities, thereby achieving the purpose of automatic determination, and cooperates with the power storage drive module and the debris cleaning mechanism to perform debris cleaning. During the debris cleaning process, the impact on the measuring process of the measuring roller can be reduced, the detection accuracy can be improved, the resistance of the measuring roller can be reduced, and the physical burden of the operator can be reduced. The measuring roller and the detection roller are rolled to gradually increase the elastic potential energy of the volute spring, and the volute spring is controlled to quickly release the accumulated elastic potential energy when cleaning is required, so as to realize the function of quickly driving the cleaning component, and the impurities stuck on the measuring roller are cleaned more effectively. During the entire operation process, not only the impact on the measuring process of the measuring roller is reduced, and the measurement accuracy of the measuring roller is improved, but also the physical burden of the operator is reduced, thereby achieving the purpose of intelligent and automated construction measurement. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the overall structure of the first and second implementation modes of the present application;

[0020] Figure 2 This is a schematic diagram of the overall structure of the first and second embodiments of the present application from another perspective;

[0021] Figure 3 This is a schematic diagram of the detection roller and the cleaning assembly after they are moved downward according to the first and second embodiments of the present application;

[0022] Figure 4 A schematic diagram of the installation position of a pressure sensor according to the first and second embodiments of the present application;

[0023] Figure 5A schematic diagram of the installation position of the pressure sensor 2 according to the first and second embodiments of the present application;

[0024] Figure 6 This is a control principle block diagram of an intelligent measuring device according to the first embodiment of the present application;

[0025] Figure 7 This is a schematic diagram of the structure of the detection roller and the cleaning assembly of the first and second embodiments of the present application;

[0026] Figure 8 A schematic structural diagram of the detection roller and the cleaning assembly of the first and second embodiments of the present application from another perspective;

[0027] Fig. 9 This is a schematic diagram of the drive shaft and cleaning roller brush structure of the first and second embodiments of the present application;

[0028] Fig.10 For this application Fig. 9 The enlarged schematic diagram at A in the middle;

[0029] Fig.11 This is a block diagram of the control principle of the intelligent measuring device according to the second embodiment of the present application.

[0030] Description of the numbers in the figure:

[0031] 1. Measuring roller; 2. Spindle; 3. Counter; 4. Connecting rod; 5. Handle; 6. Guide rod; 7. Intelligent measuring device; 8. Display screen; 9. Mounting seat; 10. Detection roller; 11. Cleaning assembly; 12. Indicator rod; 13. Electromagnet 1; 14. Magnet block 1; 15. Sliding block; 16. Bearing; 17. Pressure sensor 1; 18. Rotating shaft; 19. Pressure sensor 2; 20. Linkage wheel; 21. Synchronous shaft; 22. Volute spring; 23. Cleaning frame; 24. Driving shaft; 25. Cleaning roller brush; 26. Electromagnet 2; 27. Magnet block 2; 28. Bevel gear ring 1; 29. ​​Bevel gear ring 2; 30. Ratchet; 31. Ratchet. DETAILED DESCRIPTION

[0032] Two implementation modes of the present application are described in detail below with reference to the accompanying drawings.

[0033] The first implementation method:

[0034] Figure 1-Figure 7A measuring device for residential building construction is shown, including a connecting rod 4, a debris clearing mechanism and an intelligent measuring device 7; a main shaft 2 is installed at the bottom of the connecting rod 4, a measuring roller 1 is rotatably connected to the main shaft 2, a counter 3 is installed on the main shaft 2, and a pressure sensor 17 is embedded in the corresponding position of the main shaft 2 and the measuring roller 1. The measuring roller 1 is pushed to move along the measuring track by the connecting rod 4, and the counter 3 detects the number of rotations and the rotation angle of the measuring roller 1, so as to measure the moving distance of the measuring roller 1 by measuring the circumference of the measuring roller 1, and obtain the distance of the moving track of the measuring roller 1. In the process of pushing the measuring roller 1 to roll, when impurities are stuck on the surface of the measuring roller 1, the measuring roller 1 will suddenly fluctuate upward during the uniform rolling process, and the upward fluctuation state of the measuring roller 1 can be detected by the pressure sensor 17, so as to judge whether the measuring roller 1 is stuck with impurities.

[0035] In addition, the cleaning mechanism includes a mounting seat 9 installed with the connecting rod 4, a sliding block 15 vertically slidably connected with the mounting seat 9, a magnet block 14 fixed on the top of the sliding block 15, a detection roller 10 rotatably connected with the sliding block 15 through a rotating shaft 18, and a cleaning component 11 located at the top of the measuring roller 1. The detection roller 10 is located above the measuring roller 1, and the mounting seat 9 is provided with an electromagnet 13 installed above the magnet block 14. A pressure sensor 2 19 installed with the sliding block 15 is arranged above the rotating shaft 18. A linkage wheel 20 is fixed at the end of the rotating shaft 18 away from the detection roller 10, and a synchronous shaft 21 is arranged below the linkage wheel 20. A volute spring 22 is installed between the outer ring of the synchronous shaft 21 and the mounting seat 9. The end of the synchronous shaft 21 is linked to the cleaning component 11 through a chain to drive the cleaning component 11 to clean the measuring roller 1. During normal measurement, the detection roller 10 and the surface of the measuring roller 1 are in a non-contact state. At this time, the detection roller 10 does not affect the normal rotation of the measuring roller 1. The invention can reduce the influence on the measuring process of the measuring roller 1, improve the detection accuracy, reduce the resistance of the measuring roller 1, and reduce the physical burden of the operator; when it is detected that the measuring roller 1 is stuck with impurities, the detection roller 10 is controlled to move down and fit with the surface of the measuring roller 1. At this time, the measuring roller 1 will drive the detection roller 10 to rotate during its rolling process, and the detection roller 10 drives the synchronous shaft 21 to rotate through the linkage wheel 20, so that the volute spring 22 gradually increases the elastic potential energy, and at the same time, the cleaning component 11 can be driven by the synchronous shaft 21 and the chain to operate, so as to clean the small particles on the surface of the measuring roller 1. When the stuck impurities on the measuring roller 1 move to contact with the detection roller 10, the impurities will push the detection roller 10 up, and at this time, the detection roller 10 drives the linkage wheel 20 to disengage from the synchronous shaft 21, and the elastic potential energy accumulated in the volute spring 22 is quickly released, and the volute spring 22 will drive the synchronous shaft 21 to rotate quickly, thereby realizing the function of quickly driving the cleaning component 11, and the impurities stuck on the measuring roller 1 are cleaned more effectively.

[0036] It is worth mentioning that the intelligent measuring device 7 is installed on the connecting rod 4. The intelligent measuring device 7 is provided with a measuring module, a card checking module, a force storage driving module and a display module. The measuring module is electrically connected to the display module and the counter 3 respectively. The card checking module is electrically connected to the display module, the force storage driving module, the pressure sensor 17 and the pressure sensor 2 19 respectively. The force storage driving module is electrically connected to the electromagnet 13. The display module is electrically connected to the display screen 8, and the contents of the display module are displayed for the convenience of the operator to watch. The measuring roller 1 is pushed to roll by the connecting rod 4 for measurement. The counter 3 counts the number of circles and angles of the measuring roller 1. The measuring module is reflected by the counter 3. The distance measured by the measuring roller 1 is calculated based on the data fed back and the circumference of the measuring roller 1. The display module displays the distance data calculated by the measuring module, which is convenient for the measuring personnel to understand in real time. In this process, the power storage drive module controls the electromagnet 13 to be energized to generate magnetism opposite to that of the magnet block 14. The electromagnet 13 controls the magnet block 14 together with the detection roller 10 to move up and disengage from the measuring roller 1, thereby reducing the impact on the rotation of the measuring roller 1. When the measuring roller 1 rolls and gets stuck with impurities, the movement state of the measuring roller 1 fluctuates. At this time, the pressure sensor 17 feeds back the detected pressure data to the card inspection module, and the card inspection module determines the outer ring of the measuring roller 1. Impurities are stuck, and the card inspection module sends the judgment result to the display module and sends a force storage drive signal to the force storage drive module. The force storage drive module controls the electromagnet 13 to be energized to generate the same magnetism as the magnet block 14. At this time, the magnet block 14 moves down together with the sliding block 15 and the detection roller 10. The detection roller 10 contacts the outer ring of the measuring roller 1 and rotates with the measuring roller 1. The rotating detection roller 10 drives the linkage wheel 20 and the synchronous shaft 21 to store force on the volute spring 22. When the impurities stuck on the measuring roller 1 move to contact the detection roller 10, the pressure sensor 219 detects the pressure change and feeds back to the card inspection module. The card inspection module determines that there are still impurities on the measuring roller 1. And move to the detection roller 10, the impurities will push up the detection roller 10, at this time the detection roller 10 drives the linkage wheel 20 to disengage from the synchronous shaft 21, the elastic potential energy accumulated in the spiral spring 22 is quickly released, and drives the synchronous shaft 21 to rotate quickly, thereby realizing the function of quickly driving the cleaning component 11, and the impurities stuck on the measuring roller 1 are cleaned more effectively. At the same time, the card inspection module controls the detection roller 10 to move up and reset through the electromagnet 13, so as to avoid the detection roller 10 from continuously contacting the outer surface of the measuring roller 1 to generate resistance to the operation of the measuring roller 1, reduce the impact on the measuring process of the measuring roller 1, improve the measuring accuracy of the measuring roller 1, and reduce the physical burden of the operator.

[0037] Preferably, the cleaning component 11 is located on the side of the detection roller 10 close to the travel direction of the measuring roller 1. The cleaning component 11 is provided with bristles running along the axial direction of the measuring roller 1. Impurities stuck on the outer ring of the measuring roller 1 will first contact the detection roller 10, and then move to the cleaning component 11, and be cleaned by the bristles on the cleaning component 11. An indicator rod 12 is sleeved on the main shaft 2. The end of the indicator rod 12 away from the main shaft 2 is a conical structure. The indicator rod 12 plays an indicating role. Due to the effect of gravity, the bottom end of the indicator rod 12 is always vertical. It is pointed straight downward to facilitate observation of the specific point where the measuring roller 1 stops. The inner ring of the measuring roller 1 is installed with a bearing 16 corresponding to the main shaft 2. The outer ring of the measuring roller 1 is provided with a rubber sleeve, and the rubber sleeve is provided with anti-skid patterns to prevent the measuring roller 1 from slipping during rolling. A handle 5 is fixed to the top of the connecting rod 4, and a display screen 8 is installed at the front end of the handle 5. The handle 5 is covered with an anti-skid sleeve. The connecting rod 4 is pushed by holding the handle 5, which is convenient for handheld operation and also convenient for quickly obtaining measurement information through the display screen 8.

[0038] The second implementation method:

[0039] Figure 7-Figure 11 A measuring device for residential building construction is shown. Different from the first embodiment, a second magnet block 27 is installed on the top of the cleaning component 11, and an electromagnet 26 installed with the mounting seat 9 is arranged above the second magnet block 27. The second electromagnet 26 is electrically connected to the power storage drive module. In normal operation, the power storage drive module controls the second electromagnet 26 to be energized and generate a magnetism opposite to that of the second magnet block 27. At this time, the second magnet block 27 and the cleaning component 11 are controlled to move up and away from the surface of the measuring roller 1 to reduce the impact on the rolling of the measuring roller 1. When the impurities stuck on the measuring roller 1 move to the position corresponding to the impurities stuck on the measuring roller 1, the second electromagnet 26 is electrically connected to the power storage drive module. When the detection roller 10 contacts, the pressure sensor 2 19 detects the pressure change and feeds back to the card inspection module. The card inspection module determines that the impurities on the measuring roller 1 move to the detection roller 10. At this time, the card inspection module sends a cleaning signal to the power storage drive module. The power storage drive module controls the electromagnet 2 26 to generate the same magnetism as the magnet block 2 27 until the set time, thereby controlling the cleaning component 11 to approach the surface of the measuring roller 1 to clean the stuck impurities, and after the time is up, the cleaning component 11 is controlled to move up and reset, thereby reducing the impact on the subsequent measurement of the measuring roller 1, so that the detection of the measuring roller 1 is more accurate.

[0040] In addition, the top of the cleaning component 11 is vertically slidably connected to the mounting base 9 through the guide rod 6, and a buffer spring is installed between the magnet block 27 and the cleaning component 11. The electromagnet 26 controls the magnetic force to push the magnet block 27 and the cleaning component 11 downward. The buffer spring can make the bristles at the bottom of the cleaning component 11 close to the surface of the measuring roller 1, so as to more effectively clean the impurities on the surface of the measuring roller 1.

[0041] It is worth mentioning that see Fig. 9 and Fig.10 The cleaning assembly 11 includes a cleaning frame 23, a driving shaft 24 linked to the synchronous shaft 21 through a chain, and a cleaning roller brush 25 installed at the bottom of the cleaning frame 23. The driving shaft 24 drives the cleaning roller brush 25 to rotate through a gear assembly. The synchronous shaft 21 drives the driving shaft 24 to rotate through a chain. The driving shaft 24 drives the cleaning roller brush 25 to rotate through a gear assembly. The rotating cleaning roller brush 25 cleans impurities, and the rotating cleaning roller brush 25 rolls along the axis of the measuring roller 1, which can The gear assembly includes a bevel gear ring 1 28 mounted on the driving rod of the cleaning roller 25, a bevel gear ring 29 meshing with the bevel gear ring 1 28, a driving shaft 24 rotatably connected to the bevel gear ring 29, a ratchet 30 is fixed on the driving shaft 24, and a ratchet pawl 31 corresponding to the ratchet 30 is arranged on the bevel gear ring 29, and an end of the ratchet pawl 31 away from the ratchet 30 is arranged between the bevel gear ring 29 and the ratchet pawl 31. A supporting spring is installed. When the linkage wheel 20 drives the synchronous shaft 21 to rotate and accumulates force on the volute spring 22, the synchronous shaft 21 drives the driving shaft 24 to rotate. At this time, the rotation direction of the driving shaft 24 makes the ratchet 30 and the pawl 31 in an unrestricted state. The free rotation of the driving shaft 24 does not drive the cleaning roller brush 25, so that when the synchronous shaft 21 drives the volute spring 22 to accumulate elastic potential energy, the load on the detection roller 10 and the linkage wheel 20 is reduced, and when the linkage wheel 20 is out of contact with the volute spring 22, the elastic potential energy accumulated by the volute spring 22 is used to quickly drive the synchronous shaft 21 and the driving shaft 24 to rotate in the opposite direction. At this time, the reversely rotating ratchet 30 cooperates with the pawl 31 to drive the bevel gear ring 29 to rotate synchronously, thereby synchronously driving the bevel gear ring 1 28 and the cleaning roller brush 25 to rotate, and quickly cleaning the impurities stuck on the measuring roller 1. In this process, the impact on the normal rotation of the measuring roller 1 can be reduced, the physical burden of the operator can be reduced, and the accuracy of distance detection can be improved.

[0042] In view of current practical needs, the above-mentioned implementation mode adopted in this application is not limited to the scope of protection. Various changes made within the knowledge scope of technical personnel in this field without departing from the concept of this application still fall within the scope of protection of the present invention.

Claims

1. A measuring device for residential building construction, characterized in that: include: A connecting rod (4), wherein a main shaft (2) is mounted at the bottom of the connecting rod (4), a measuring roller (1) is rotatably connected to the main shaft (2), a counter (3) is mounted on the main shaft (2), and a pressure sensor (17) is embedded and mounted at a position corresponding to the main shaft (2) and the measuring roller (1); A cleaning mechanism, the cleaning mechanism comprising a mounting seat (9) mounted on a connecting rod (4), a sliding block (15) vertically slidably connected to the mounting seat (9), a magnet block (14) fixed on the top of the sliding block (15), a detection roller (10) rotatably connected to the sliding block (15) via a rotating shaft (18), and a cleaning component (11) located on the top of the measuring roller (1), wherein the detection roller (10) is located above the measuring roller (1), and an electromagnet (13) is installed on the mounting seat (9) at a position above the magnet block (14). ), a second pressure sensor (19) mounted on the sliding block (15) is arranged above the rotating shaft (18), a linkage wheel (20) is fixed to the end of the rotating shaft (18) away from the detection roller (10), a synchronization shaft (21) is arranged below the linkage wheel (20), a volute spring (22) is installed between the outer ring of the synchronization shaft (21) and the mounting seat (9), and the end of the synchronization shaft (21) is linked to the cleaning component (11) through a chain so as to drive the cleaning component (11) to clean the measuring roller (1); An intelligent measuring device (7) is mounted on a connecting rod (4). The intelligent measuring device (7) is provided with a measuring module, a card checking module, a force storage driving module and a display module. The measuring module is electrically connected to the display module and the counter (3) respectively. The card checking module is electrically connected to the display module, the force storage driving module, a pressure sensor 1 (17) and a pressure sensor 2 (19) respectively. The force storage driving module is electrically connected to an electromagnet 1 (13). The display module is electrically connected to a display screen (8).

2. A measuring device for residential building construction according to claim 1, characterized in that: The cleaning component (11) is located on a side of the detection roller (10) close to the travel direction of the measuring roller (1), and the cleaning component (11) is provided with bristles that run along the axial direction of the measuring roller (1).

3. A measuring device for residential building construction according to claim 1, characterized in that: A second magnet block (27) is mounted on the top of the cleaning assembly (11), and a second electromagnet (26) mounted on the mounting seat (9) is arranged above the second magnet block (27), and the second electromagnet (26) is electrically connected to the power storage drive module.

4. A measuring device for residential building construction according to claim 3, characterized in that: The top of the cleaning component (11) is vertically slidably connected to the mounting seat (9) via a guide rod (6), and a buffer spring is installed between the second magnet block (27) and the cleaning component (11).

5. A measuring device for residential building construction according to claim 3, characterized in that: The cleaning assembly (11) comprises a cleaning frame (23), a driving shaft (24) linked to a synchronous shaft (21) via a chain, and a cleaning roller brush (25) mounted on the bottom of the cleaning frame (23); the driving shaft (24) drives the cleaning roller brush (25) to rotate via a gear assembly.

6. A measuring device for residential building construction according to claim 5, characterized in that: The gear assembly comprises a bevel gear ring 1 (28) mounted on a driving rod of the cleaning roller brush (25), and a bevel gear ring 2 (29) meshing with the bevel gear ring 1 (28); the driving shaft (24) is rotatably connected to the bevel gear ring 2 (29); a ratchet (30) is fixed to the driving shaft (24); a ratchet pawl (31) corresponding to the ratchet (30) is arranged on the bevel gear ring 2 (29); and a supporting spring is installed between an end of the ratchet pawl (31) away from the ratchet (30) and the bevel gear ring 2 (29).

7. A measuring device for residential building construction according to claim 1, characterized in that: An indicating rod (12) is sleeved on the main shaft (2), and one end of the indicating rod (12) away from the main shaft (2) is a conical structure. A bearing (16) corresponding to the main shaft (2) is installed on the inner ring of the measuring roller (1), and a rubber sleeve is sleeved on the outer ring of the measuring roller (1), and anti-slip grooves are arranged on the rubber sleeve.

8. A measuring device for residential building construction according to claim 1, characterized in that: A handle (5) is fixed to the top of the connecting rod (4), the display screen (8) is mounted on the front end of the handle (5), and an anti-slip cover is sleeved on the handle (5).

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